Door operating device



Dec. 31, 1940.

M. S. WESTOVER DOOR OPERATING DEVICE Filed April 22, 1938 3 Sheets-Sheet 1 as v Dec. 31; 1940. 5 WESTQ'VER 2,227,115

DOOR OPERATING DEVICE Filed April 22, 1938 3 Sheets-Sheet 2 muamd-m;

Dec. 31, 1940. s WESTQVER 2,227,115

DOOR OPERATING DEVIICE Filed April 22, 1938 3 Sheets-Shed 5 /(l fia'cmey Patented Dec. 31, 1940 Marvin Steele Westover, Stettler, Alberta, Canada Application April 22, 1938, Serial No. 203,490 In Canada May 14, 1937 3 Claims.

My invention relates to door operating means, more particularly including fluid pressure means and mechanism for actuation of doors between open and closed positions.

One of the objects of the invention is to provide an improved device for operation by fluid under pressure for use in conjunction with doors as a means for moving the doors between open and closed positions. The device is particularly adapted for convenient attachment in operative relation to the doors and includes an improved mechanism by which the power from the fluid pressure device may be applied to actuation of the doors.

To this end there is provided an improved mounting for. the fluid pressure device and a bar mounted to be operated thereby, said bar being movable in relation to the door opening and being attachable for operation of the doors. In

addition there is provided a novel combination of door mounting and actuating means .for association with the fluid pressure device as will hereinafter be more particularly described.

A further object of the invention is to pro- 5 vide in a device for operation by fluid under pressure an improved piston combined with a valve arrangement by which the terminations of the piston movement may be cushioned.

A still further object of the invention is to 0 provide a remote control and treadle operation for the control for automatic operation of the fluid pressure device by avehicle in passage.

To the above ends there is providedthe novel arrangement of parts and elements as hereinafter more particularly described and claimed,

reference being had to the accompanying drawings wherein like characters indicate like parts throughout the several views.

In the drawings:

Fig. 1 is a top plan view of one form of door operating mechanism and associated piston connecting rod from the fluid pressure device, the mechanism being illustrated in conjunction with suitably mounted doors, thelatter being shown in partially opened position. v i

Fig. 2 is a side elevation of the showing in Figure 1 and including the fluid pressure mechanism and feed lines with source of supply of the fluid under pressure, and further including the treadle mechanism. and control, certain parts'of the showing being sectioned or broken away for convenience of illustration. I

Fig. 3 is a detail view partly in transverse section of the control for the fluid pressure feed lines.

ception of a cross bar H.

a connecting rod Fig. 4 is a plan view illustrating application of the improved fluid pressure device to a difierent type of door, certain parts of the showing being sectioned and. parts broken away. f

. Fig. 5 is a detail end view of the fluid pressure 5 cylinder and the brace mountings for the movable crossbar.

Fig. 6 is a plan view showing mechanism for application of a device of this character to a type of door adapted for elevation and overhead 1U horizontaltravel.

Fig. 7 shows a side View of a deviceof a character indicated in Figure 6 and including the fluid pressure mechanismfor actuation of the door.

Fig. 8 is a detail end View of the bracket for 15 connection of the piston and connecting rods and including a vertical-section of theguideway for travel of the bracket.

Having reference to the drawings, more particularly to Figures 1 to Binclusive, there is 20 shown a portion of a building orthe like partially defining a door opening and including wall sections serving as uprights or door posts I and 2 To the upper ends of the door sections 3 and G 0 are attachedguide. plates 1 and 8, said plates including extensions projecting beyond the door sections, said extensions being longitudinally slotted throughout. To the door sections 5 and 6 are respectively attached further guide plates .9 I35 and i0 similar to the plates l and 8 and including extensions, but in this instance said extensions project rearwardly, that is from the hinged sides of the door sections. The guide plates 1 and 8 are respectively mounted in superimposed spaced relation to the guide plates 9 and Ill leaving a suitable interval therebetween for re- Said cross bar in: cludes slotted end sections, as indicated at l2, similar to the slotted portions of theguide plate 45 extensions, and operatively engageable therewith through the medium of pins I3.

To the cross bar II is. intermediately attached [4, said rod through the medium of a link I4 attaching to a piston rod 14.

A fluid pressure cylinder I6 is attachable to the building wall by means of a bracket Hiiwhich attaches thereto and may be bolted or-similarly secured to the wall. Within the cylinder It is 5 in such devices and for that reason not being numerically indicated.

The feed line 24 extends to a valve casing l8 in which is rotatable a valve body l9. '(See Figure 3.) The body It includes passages adapted for register with feed lines 22 and 23 that connect with the casing H) by which on. rotation of said body the fluid under pressure may flow from the tank I! through one or other I of the feed lines or be shut 01f.

The feed lines 22 and 23 communicate with the cylinder [6 at points spaced from the ends thereof. For cushioning the terminations of the movement of the piston [5, said piston is formed in two similar sections, as at 32, said sections being threaded on the piston rod spaced apart by a suitable sleeve as illustrated. The piston is secured on the rod 14 by a nut 3l and may be held by a similar nut as shown at the opposite end of the piston.

Communicating between the pipe lines 22 and 23 and the ends of cylinder l6 are additional fluid lines respectively indicated at 33 and 36, said fluid lines being provided with check valves incorporated therein as at 35 and 31, said valves being of a usual character for allowing passage of fluid in one direction only, and accordingly not meriting special illustration.

When the piston I5 moves towards either end of the cylinder [6 it first shuts off flow of fluid through the regular pipe line 22 or 23 leaving only a reduced flow through the fluid lines 33 or 36, this serving to cushion the movement of eliminate jar and noise in its optionof the valve body [9 includes a platform 25 forming part of the approach to the door and including a section 26 adapted for depression by the wheels of a passing vehicle. 'Said'section 26 connects by a suitable link to an angled lever or crank 21 which, through the medium of an arm 28, may actuate a toothed wheel 29 mounted on the valvebody I9 externally of the casing. The arm 28 may include a turnbuckle or the like for adjustment. Depression of platform section 25, through the connecting members, causes arm 28 to actuate the body l9 and turn the valve the required amount according to its adjustment.

In the operation of the device as described when fluid under-pressure, such as compressed 'air, is admitted to the cylinder I6 through either of the fluid lines 22 or 23 it causes the piston [5 to be moved in the cylinder and through the piston rod !4 and connecting rod l4 moves the cross bar I! to or from the wall in which the door opening is. Through the sliding connection of the pins IS with the guide plate extensions this causes the doors 3 and 4 and their attached sections to move either intofolded relation in the open position or into closing relation to the door opening. i

In Figure 4 is a modified showing of the device for application of the cross bar, to actuate doors of a one piece character, though also applicable to doors of the type shown in Figure 1. There are illustrated doors 40 and 4| hinged to fixed wall sections 38 and 39. In this showing a fluid pressure cylinder 46 is mounted secured to the building wall by a bracket 41 and further attached between spaced runways 42 and 43. The cylinder 46 has mounted therein for reciprocation a piston 48 connecting by a rod 49 to a cross bar 44. The bar 44 travels on the runways, being freely movable on rollers 45.

The cross bar 44 includes brace members 50 and 5|, the outer ends of which are in fixed attachment to the cross bar and the inner ends in sliding engagement with the runways 42 by means of a connecting bracket as more clearly illustrated by reference to Figure 5, said bracket being formed of a single unit providing arms 50' and 5|.

To the ends of the cross bar 44 attach arms 52 and 53 in which are respectively mounted endwise relatively shiftable rods 54 and 55. The relation between said arms and rods may be relatively fixed by set screws or the like. Said rods respectively attach to plates 56 and 5l secured to the doors 4!! and 4|.

Operation of the rod 49 by the piston 48, when fluid under pressure is admitted to the cylinder 46, would shift the bar 44 to or from the building and through the connecting arms 5253 and rods 54-55 move the doors 4!} and 4! between open and closed positions.

In the apparatus as illustrated in Figures 6 to 8 inclusive, 5'! indicates a door of a character wherein'a series of connected related sections are mounted for movement in channeled tracks, as at 58 and 59, that define a door opening and overhead continuation of the tracks, the door in. cluding rollers 60 for travel in said tracks by which the door may be freelymovable' between a vertical closing position in relation to the door opening and an elevated horizontal position clear of said opening.

In this showing there is provided a cylinder 6| attachable by means of a bracket 62 to the building wall, a'portion oiwhich is indicated at 63. The cylinder is additionally supported at its forward end by a bracket 64 attachable to the ceiling or suitable 'fixed support forming part of the structure in which the door is mounted.

The cylinder 6! includes communicating pipe lines 65 and 66 connectible to a source of supply of fluid under pressure, and including the branch connections 61 and 68 for the piston cushioning arrangement.v Y

Within the cylinder 6! reciprocates a piston 69 with piston. rod 10. Forwardly of the cylinder BI is a trackway H which attaches to the underside of the cylinder GI and at the other end may be supported by a bracket I2. The track-way'll includes horizontal sections as at l 3l3 (see Figure 8).

Mounted for travel on the trackway H is a bracket 14, said bracket carrying rollers, as at T5, for travel on the sections ,13'l3. part of bracket 14 attaches the piston rod 10, while to the lower part attaches a connecting rod '16.

The upper end of the door 5! has attached thereto a crossbar H by means of arms 18 and brackets 1-9 to which said arms pivotally connect.

The ends of the bar 11 carry arms 8| mounting rollers 82 for travel in the trackways 58 and 59. Intermediately the'bar 11 carries a bracket 83 braced by rods 84. To this bracket 83 attaches To the upper a la the piston connecting rod 16, for actuation of the door 51. On actuation of the piston 69 the rod 16 is endwise shifted correspondingly to move the connected door 51 and cause same to travel on the tracks 58 and 59 between open and closed positions in relation to the door opening.

While I have herein disclosed a pIeferred embodiment of my invention and modifications thereof it is obvious that some changes in form, construction and operation of parts and elements would be permissible without departure from the spirit and scope of the invention as defined by the appended claims.

I claim:

1. A device of the character described including a door opening and a pair of doors hinged to close said opening, said doors being mounted to swing inwardly, a pair of runways mounted in relation to the door frame above the door opening horizontally inwardly projecting, said runways being spaced apart and in parallel relationship, a cross bar transversely mounted for travel on the runways, brace members between the cross bar and runways, said members being in fixed attachment tothe cross bar and mounted for sliding movement on the runways, a fluid .pressure device mounted in association with the runways, said device being connected for effecting movement of the cross bar, plates on the doors outwardly projecting therefrom, and connecting rods between the cross bar and plates, the connection with the plates being at points substantially outwardly spaced from the doors.

2. A device of the character described including a door opening with doors hinged to close the opening, a fluid pressure operated device for effecting movement of the doors, said device including a pair of runways mounted above the door opening horizontally inwardly projecting in relation thereto, across bar transversely mounted for movement on the runways, said cross bar including rollers for travel on the runways, brace members between the cross bar and runways, said members being mounted for sliding movement on the runways, a fluid pressure cylinder mounted in association with the runways, a piston for reciprocation within the cylinder, and a piston rod connection between said piston and cross bar.

3. A device of the character described including a door opening and a pair of doors hinged to close the opening, a pair of runways fixed to the door frame above the door opening and horizontally projecting therefrom, in a direction common to the direction of opening movement of the doors, a fluid pressure cylinder carried by the runways, a piston for-reciprocation within the cylinder and a rod for the piston, a cross bar transversely mounted for travel on the runways, the piston rod being connected for effecting movement of the cross bar to and from the door opening by reciproc'ation of the piston, and means connecting the ends of the cross bar and doors for movement of the doors, the connection with the doors being on the sides thereof opposite to the direction of opening movement of the doors.

MARVIN STEELE WESTOVER. 

